Working remotely is not a new thing for Linux Administrators. Especially when he/she is not in front of the server. Generally, the GUI is not installed by default on Linux servers. But there may some Linux Administrators who choose to install GUI on Linux servers.
When your server has a GUI, you may want to remote the server with full desktop experience. To do that you may install VNC Server on that server. In this article, we will cover about NoMachine as an alternate Remote Desktop Tool.